Question on Tune Up Timing

https://edwindcya012.clearminster.com/posts/short-cycling-ac-repair-explained-for-north-fort-worth-homes-by-the-comfort-experts-team

Question on Tune Up Timing Does anyone know if spring or fall is better for a tune-up? Not sure when it makes the most sense for an older system in Summerfields, since the AC works hardest in summer but the furnace matters in winter